Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

AW: st: Overriding a loop if 0 observations using tabstat


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   AW: st: Overriding a loop if 0 observations using tabstat
Date   Tue, 27 Apr 2010 13:22:47 +0200

<> 

You can always -assert- or -count- beforehand:


*************
sysuse auto, clear


forv i=1/5{
	forv j=0/1{
	di _n in r "rep78==`i' & foreign==`j'"
	qui count if rep78==`i' & foreign==`j'
	if r(N)>0 tabstat mpg if rep78==`i' & foreign==`j'
	if r(N)==0 di in r "Bailing out as no obs" _n(2)
}
}
*************



HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von sara khan
Gesendet: Dienstag, 27. April 2010 13:15
An: statalist@hsphsun2.harvard.edu
Betreff: Re: st: Overriding a loop if 0 observations using tabstat

Many thanks for your response.

I just tried this but the output only shows the display results and
nothing from tabstat. Here is the output:

. foreach i in  0 1 2 3 4 5 {
  2. foreach y in male singlet{
  3.  di "Var =`y' & GA=`i'"
  4.   capture noisily tabstat bwtg if myga==`i' & intab1==1 &
admit_ic==1 & bwtg<., stat(n mean median p25 p75 min max ) by(`y')
col(stat) f(%9.0g) notot nosep
  5. }
  6. }
Var =male & GA=0
Var =singlet & GA=0
Var =male & GA=1
Var =singlet & GA=1
Var =male & GA=2
Var =singlet & GA=2
Var =male & GA=3
Var =singlet & GA=3
Var =male & GA=4
Var =singlet & GA=4
Var =male & GA=5
Var =singlet & GA=5


On Tue, Apr 27, 2010 at 11:51 AM, Maarten buis <maartenbuis@yahoo.co.uk>
wrote:
> --- On Tue, 27/4/10, sara khan wrote:
>> In the command below, there are 0 observations when `i'=0
>> and `y'=male. I get a message saying no observations and the
>> loop stops.
> <snip>
>> How can I get the first command to override 0 observations?
>
> See -help capture-
>
> Hope this helps,
> Maarten
>
> --------------------------
> Maarten L. Buis
> Institut fuer Soziologie
> Universitaet Tuebingen
> Wilhelmstrasse 36
> 72074 Tuebingen
> Germany
>
> http://www.maartenbuis.nl
> --------------------------
>
>
>
>
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index